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Janitza UMG 104 (Utility Meter)
Janitza UMG 104
Possible meter operating modes for the Janitza UMG 104 via RS485:
•
Battery (Bi-directional meter)
•
Meter for the entire plant
•
Sub-consumer
•
Utility Meter (U)
•
Utility Meter (U+I)
•
Consumption meter
•
Battery (Bi-directional meter)
•
Inverter mode
Connection assignments / installation position of the Janitza UMG 104 (Util-
ity Meter) in connection with the Solar-Log™
Note
Check the installation position of the current transformers for the different operating modes of
the Janitza UMG 104.
Note
Check that the phase assignment of the voltage measurements for the current measurements is
correct.
The following output values are recorded in the various operating modes when the installation posi-
tion is correct.
Operating mode Output value
► As a Utility Meter (U+I) with positive output value (kW) for feed-in
► As total plant meter with positive output value (kW) for feed-in
► As an inverter with positive output value (kW) for feed-in
► As a consumption or sub-consumer meter: with positive output value (kW) for consumption
► As a consumption meter (bi-directional) When the production is greater than the consump-
tion, positive output values (kW) (installation position
according to the arrow system)
► As a battery meter (bi-directional) ► When the battery storage is being charged, posi-
tive output values (kW).
► When the battery storage is being discharged,
negative output values (kW).
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